Improvement in harvester-cutters



\ J.-o. BROWN.;

HarvesteriGutte-r.

No. 211,377. Painted 1an. 14,1879.V

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llllllllllllllllllllll mum f Jivenpw UNITED STATns Y'PM-* nur l JAMEso.BROWN, .or BENTON,- MAINE.

iM PRQVEMEN'T IN farmi/r.s1'EuQo'uTi-Eus.V

Specification forming part of Iletters PatentNo. 2115377, datex' January14,-18579; application filed 1 i l i September 5,1878.- l

fl'oall whom 't'may concerm` i Be it known that I, JAMES o. BRewN', ofBenton, in the county of Kennebec and State of Maine, have inventedcertain new and useful Improvements in Cutting-Bars for Harvesters; andI'do hereby, declare that the followin g' is 4a full, clear, 'and exactdescription there- V vertical .section oli the .line :v a: in'Fig. 1.

Corresponding parts are denoted by slmllar letters of reference.

This invention relates to that class of cutting-bars for reapelsorharvesting-maehines in which the knives or cutters are mounted upon orform'part of an endless chain; and

it vconsists in Ian improved construction and 'arran gement of parts,substantially as I shall now proceed more fully to describe.

' In the drawings, A is the body ot' the cutterbar, formed by a shallowelongatedbox or asing, at one endy of whichk is mounted a verf icalshaft, B, for'which suitable bearings are provided. At the other end thebox A has a 1 longitudinal slot or recess, a, in which slides a plate,G, terminating at its outer` endV in a fork, b, in which,'-upon asuitable shaft or axle, is mounted aehain-pulley, D. Anotherchainpulley, D', is mounted upon the vertical shaft The sliding plateGis confined in its recess by .cross-pieces c..

.The sides of `the box or casing are formed by strips d d, to one'ofwhich is secured a hat bent spring, e, with its end ,bearing against theforked end. of plate 0, which thus,

with pulley-'1),l`is forced in an outward direcsuitable construction, isarranged upon the.

pulleys D D', as showin 4Power is applied from the machine by cog-gear,belt, chain, or

l in any other suitable well-known Vmanner to the shaft B.

The operation of my invention willbe readi -l vly understood by any oneskilledA in the art to which it appertains from the foregoingdescription and by reference to the drawings hereto annexed. A

The pulley D, arranged theforked end of i the sliding plate C, andactuated by the springv Y e, will take up -any slack in the chaimandwill als'o preventthat perfect rigidity :and stiffness of motion whichoften, in machines not supplied with my improvement, results in.breakage of various parts thereof. Y

Having thus described my invention,I claimand desire to secure byLetters Patent of the United States v i' The combination of the'casingAphaving groove or 'recess a, slidin plate C,y lhaving fork b, andspring e with the endless toothed chain, arranged upon chain fpulleys,one ot' which is mounted in the forkedlplate C, substantially as hereindescribed, for the purpose set forth.=

In testimony thatl Irclaim the foregoing as my own I have hereto'affixedmy signature in presence of two witnesses. V- f JAMES OLBROWN.`4Witnesses: i,

AJ 015m C. HALL, 'JOHN P. BILLINGS.

